baber/WOPTO huggingface dataset:
Patent GB-637133-A (GB)
Title: Improvements in the production of alkali cellulose and cellulose derivatives made therefrom
IPC: C08B11/00
Filed: 1947-10-17
Abstract: Alkali cellulose is produced by mixing, without grinding, cellulose of packing density (as defined in the Specification) above 10 lb./cu.ft. with solid caustic alkali.  The packing density is preferably between 10 and 35 lb./cu.ft., and especially between 15 and 30 lb. cu.ft.  The cellulose may be produced from sheets of purified wood pulp so that the product has at least one dimension less than 0.2 in. and preferably less than about 0.1 in., for example between about 0.02 in. and 0.075 in.  The cellulose is mixed with dry flake or powdered caustic alkali, preferably in the proportion of 8-35 molecular proportions of alkali for each glucose residue in the cellulose.  An organic liquid such as an ether-alcohol may be added to the mixture, which may be etherified with, for example, methyl or ethyl chloride or chloracetic acid.  In a modification, the caustic soda may be in the form of an aqueous solution of concentration at least 70 per cent, or a saturated solution containing some solid.  In one example, sheets of purified wood pulp were broken up and granulated in a mixer to give a product of packing density 26 lb./cu.ft. in which the particles were less than 0.1 in. across. This cellulose was mixed with about 2.5 times its weight of dry powdered caustic soda and 20 per cent (of the weight of the cellulose) of monomethyl glycol was added.  The mixture was passed to a mixer, then transferred to an autoclave and etherified with ethyl chloride to give an ethyl cellulose of ethoxy content about 52 per cent. Specification 637,134 is referred to.
Patent GB-728686-A (GB)
Title: An improved method of and machine for working peat
IPC: E21C49/00
Filed: 1952-11-05
Abstract: 728,686. Peat. OLSSON, O. Nov. 5, 1952, No. 27888/52. Class 50. [Also in Group XXI] Inclined grooves are produced in peat moors by a pivotally mounted sword-like excavator disposed vertically or in a plane inclined to the horizontal and carrying an endless bucket or shovel chain which travels at such a high speed that the peat is disintegrated or comminuted as it is lifted before being spread out on the moor. At the side of a machine on a support 1 having parallel runners 2 an endless chain excavator is pivotally mounted on an axle 3 the chain carrying shovels 11 adapted to break up the deep peat and roots &c. as well as surface material and deposit them at high speed through a receptacle 26 into a funnel 18 feeding a spreader 19. In this container a screw 21 feeds the peat through an opening 20 in the path of a number of discs 30 driven from a transmission shaft 28 and cutting parallel grooves to encourage fractures as the peat dries. A plough 32 may precede the shovel chain which is raised and lowered by means of a hydraulic cylinder and piston 24.
Patent GB-899346-A (GB)
Title: Improvements in or relating to machines suitable for use in carrying out channelling and lip-setting operations on soles intended for use in the manufacture of shoes
IPC: A43D43/02
Filed: 1957-09-05
Abstract: 899,346. Lip forming machines for soles. BRITISH UNITED SHOE MACHINERY CO. Ltd. (United Shoe Machinery Corporation). Sept. 3, 1958 [Sept. 5, 1957], No. 28013/57. Class 17(1) A machine for channelling and lip-setting soles has a gauge 36 for the depth of cut made by the channelling knives 24 (Fig. 1), the gauge having two faces 102, 100 which, as the sole S is fed across the work table 20, engages two bands of the sole which are subsequently raised into lips, thermo-plastic cement being fed on to one band from face 102 and face 100 being cooled; when the lips are pressed together by jaws 28, the cement is cooled by the pre-cooled lip and causes the lips to adhere together to form a lip. Cement in the form of rods R is fed by feed wheels 174, 176 into a heating block 162, (Fig. 6) and thence past a rotary melting disc 144. The melted cement is then pumped by gear pump 154, 156 into passage 124. Valve 114 normally seats on the end of passage 110, but when open allows the cement to flow via passages 106, 104 to the face 102 of gauge 36. The other face 100 of the gauge is cooled by water pumped from a reservoir. Feeding of the cement rods into the melting units, pumping of the melted cement to valve 114, opening of the valve 114 and feeding of sole S across the work table are stopped and started simultaneously by electromagnetic means, a feeler 408 actuating the means when it senses a sole on the work table 20. Specification 749,892 and U.S.A. Specification 2,750,607 are referred to.
Patent GB-508055-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/82
Filed: 1937-12-24
Abstract: 508,055. Sulphuric acid. TRIGGS, W. W. (Soc. Generale Metallurgique de Hoboken) Dec. 24, 1937, No. 28016/38. Divided out of 498,631. [Class 1 (ii)] In the production of sulphuric acid by the chamber or nitrogen oxides, method, while using one or several spaces or towers for the production of acid, provided with filling material followed by a Gay-Lussac space which may also be provided with filling bodies, with a space for the regeneration of nitrogen oxides inserted between the production space and the Gay-Lussac space and sprayed with a solution of nitrosyl-sulphuric acid, the three spaces (production, regeneration and absorption) are combined into one space or tower, the concentration of the acid for spraying this space or tower being maintained practically constant between the limits of 56-58‹ BÚ. The filling materials may be irregular grains of an acidresisting substance such as quartzite. The middle or regeneration zone of the tower may be provided with a filling material having only about one quarter of the surface of the filling bodies of the production zone. The lower part of the tower (production zone) and the upper part of the tower (absorption zone) may be provided with filling bodies having a surface as large as possible. The production zone should be sufficiently tall to ensure that the gases passing to the regeneration space are cool. The power may be inserted into a system of chambers for the manufacture of sulphuric acid at a suitable point of the circuit.
Patent GB-412081-A (GB)
Title: Improvements in eyeglasses for correcting ocular image differences
IPC: G02C7/02
Filed: 1933-10-11
Abstract: 412,081. Spectacle lenses. BROOKES, N. E., 1, Quality Court, Chancery Lane, London.-(Dartmouth College, Trustees of ; Hanover, New Hampshire, U.S.A.) Oct. 11, 1933, No. 28075. [Class 97 (i).] In order to compensate for differences between the sizes and/or shapes of the two images of a given object produced by a person's eyes, the dimensional relationship of the two images is changed by means of a lens or plate which deflects the incident light rays to such an extent as to render the images substantially equal. The correction device shown consists of a plate V constituting a lens of zero power and having curved surfaces S<1>, S<2> of substantially the same curvature. When this plate is placed in front of the eye 0 with its concave surface towards the eye, the refraction which the light rays undergo in passing through the plate has the effect of displacing the image of a point P in the object field from the point y to the point y', the displacement depending upon the distance of the point y from the axis MN of the eye. The plate then produces an increase in the size of the image without altering the power of the eye. Reduction of the image size can be effected by mounting the plate with its convex side towards the eye. The plate can be mounted in a spectacle frame, either alone or in conjunction with such lenses as are necessary to correct for refractive errors of the eye. When lenses are required, the use of a separate sizecorrecting plate may be avoided by modifying the shape of the lens by varying the radii of its surfaces without altering its power, so that the lens itself produces the necessary size correction as well as correcting the refractive errors.
Patent GB-255699-A (GB)
Title: Improvements in date indicators for calendars
IPC: B42D5/04
Filed: 1925-11-09
Abstract: 255,699. Lockett, W. J., and Bones, L. F. Nov. 9, 1925. No Patent granted (Sealing fee not paid). Calendars.-In a calendar a magnetic ring or other shaped member is adapted to co-operate with a metal plate arranged behind the date cards or sheets to act as a particular date indicator. In the form shown, Figs. 1, 2, the sheets a forming the calendar are mounted in a metal casing b attached to a backing c forming a stand or support for the calendar. The metal casing b has a front plate e over which the uppermost sheet is laid the remaining sheets being placed in the space f. A magnetic ring or other shaped member d it attracted to the plate e and remains set over any particular indication on which it is placed, a cord h being attached to the ring and back to prevent the ring being mislaid when detached from the plate. Reference has been directed by the Comptroller to Specification 247,119.
Patent GB-999391-A (GB)
Title: Ethers of methyl 18-epi-reserpate and salts thereof and process for their manufacture
IPC: A23K1/16
Filed: 1961-08-02
Abstract: The invention comprises compounds of general formula <FORM:0999391/C2/1> in which R1 and R2 are alkyl (1-5 C), and X is hydroxy, chlorine, bromine, iodine or OR2; and their preparation by reacting a compound BrCR1(COOR2)2 with an alkali metal benzylate to form the diesters I (X = OR2), which are saponified with an alcoholic solution of an alkali metal hydroxide to the ester-acids I (X = ON), from which the halides are obtainable by known methods.ALSO:The invention comprises methyl 18-epi-OR-reserpates, in which R is methyl, ethyl, n-propyl or isopropyl, and their acid addition salts; and the preparation of these compounds by subjecting a methyl reserpate, esterified in the 18 position with an organic sulphonic acid, to alcoholysis with an alcohol ROH and, if desired, converting the resulting bases into salts or the resulting salts into bases.  A tertiary amine catalyst is usually used for the alcoholysis reaction. The organic radical of the sulphonic acid ester starting material may be lower alkyl, unsubstituted phenyl or a phenyl radical substituted with, for example, halogen atoms or nitro, carboxyl, carbalkoxy, carbamyl, cyano or methyl groups; these sulphonic acid esters are prepared by reacting a methyl reserpate with the appropriate sulphonic acid halide in the presence of a base such as pyridine or collidine.  Pharmaceutical preparations comprise the methyl 18-epi-OR-reserpates and their salts, which are sedatives, tranquillizers, antifibrillatory agents and local anaesthetics, together with a pharmaceutically suitable carrier.  They may be in forms suitable for enteral or parenteral administration, e.g. tablets, dragees, capsules, solutions, suspensions or emulsions. Veterinary preparations, e.g. in the form of animal feedstuffs, are also mentioned.  Salts specified include those with ascorbic, salicylic and p-aminosalicylic acids, methionine, tryptophan, lysine and arginine.  Specifications 999,394 and 999,397 are referred to.
Patent GB-1132752-A (GB)
Title: Improvements in or relating to measuring gauges
IPC: G01B11/26
Filed: 1966-06-23
Abstract: 1,132,752. Optical gauging. PILKINGTON PERKIN-ELMER Ltd. and M. H. FREEMAN. June 23, 1967 [June 23, 1966], No.28203/66. Heading G1M. [Also in Division G2] A measuring gauge for checking a workpiece comprises two diffraction grating carriers 3, 4 pivotally connected by bolt 22 and each having an integral triangular leg 5 and 6, respectively with bearing plates 28, 29 which engage the workpiece, each carrier having a window 8 carrying a grating, the grating rulings being parallel when the legs are in the correct or standard position, the Moire fringes observed through the gratings rotating in dependence on any displacement of the legs from that standard position. The gratings are separated from each other to give magnified fringes. As shown the gauge is for measuring deviations from a predetermined angle, but distance may be measured if the legs 5, 6 comprise caliper arms. Improved fringe contrast is obtained by viewing the gratings in a mirror at 45 degrees to their plane, using a white reflecting surface at 45 degrees on the opposite side to provide light.
Patent GB-154566-A (GB)
Title: Improvements in friction cutting machines
IPC: B23D59/02
Filed: 1920-10-05
Abstract: 154,566. Mikshel, J. J. Nov. 22, 1919, [Convention date]. Guards.-A high-speed friction cutter 22 for cutting metal is enclosed in a hood 118 having one face mounted on hinges 122, and cooling water is supplied to the cutter by a pipe 126. Plates 128 are arranged to catch the cooling water and deliver it to a well 133. A spark-catcher 130 is arranged as shown, and a similar plate (not shown) at the remote side of the hood.
Patent GB-652019-A (GB)
Title: Improvements in or relating to cups and like drinking vessels
IPC: B65D41/26
Filed: 1948-11-01
Abstract: 652,019. Drinking-cups. BRITISH VACUUM FLASK CO., Ltd. and AUSTIN, H. Nov. 1, 1948, No. 28324. [Class 661 A cup or like drinking- vessel 10 of synthetic resin, porcelain, or metal &c., e.g. for a vacuum flask, is formed with tapered ribs or fins 1 such that, in grasping the cup, the fingers do not contact the main part of the wall of the cup so that transfer of heat from the contents to the hand is much reduced. Theribs, which do not project beyond the ordinary cup-shaped profile are parallel and in a vertical plane to allow air to flow upwardly for cooling the ribs. They may be arranged as four spaced groups, and may be formed by moulding or machining.
Patent GB-955984-A (GB)
Title: Chlorinated cyanocarboxylic esters
Filed: 1960-08-16
Abstract: The invention comprises compounds of formula: NC-CCl=CR1-COOR where R is C1-8 primary or secondary alkyl and R1 is hydrogen or methyl. They are prepared by dehydrochlorinating a compound NCCCl2, CHR1COOR. This may be effected either in the presence of a monoamine salt, e.g. a hydrohalide, temperatures of about 60-180 DEG C. being mentioned, or in the presence of a neutral solvent and a stoichiometric amount of tertiary amine in the free base form, e.g. at 0-20 DEG C.  The products are a mixture of the two geometric isomers which may frequently be separated by distillation.  The products in which R1 is hydrogen may be subjected to alcoholysis to give a -alkoxy -b -cyanoacrylic esters.  The products are herbicides. Specification 955,985 is referred to.ALSO:Herbicidal compositions comprise, together with an inert carrier, a cyanoester of formula NC-CCl=CR1-COOR where R is C1-8 primary or secondary alkyl and R1 is hydrogen or methyl.  Sprays, wettable powders and dusts are specified. Specification 955,985 is referred to.
Patent GB-920895-A (GB)
Title: Improvements relating to the cleaning of dough-extruding dies
IPC: A21C11/16
Filed: 1961-08-04
Abstract: In a method of cleaning dough residue from an extrusion die wax material solid at room temperature, such as paraffin wax, is forced through the die by means such as the extruder to which the die is normally attached, or an auxiliary press, the residual wax being removed by washing the die in water hot enough to melt the wax.
Patent GB-1046698-A (GB)
Title: An attachment for car and like seats
Inventor: BOURNE ISAAC HENRY JOHN
IPC: B60N2/48
Filed: 1964-07-10
Abstract: 1,046,698. Headrests convertible into tables. I. H. J. BOURNE. July 12, 1965 [July 10, 1964], No. 28501/64. Headings A4H and A4J. A headrest attachment for fitting to the back squab 11 of a car seat comprises a U-shaped harness having uprights 3 provided with two pairs of pvotally mounted clamps 5 drawn into engagement with the marginal portions of the front and rear surfaces of the back squab by a cord 12 or a strap. The lower ends of uprights 3 are telescopically adjustable on sleeves 14 provided with lugs 18 to which a pair of laces 19 are attached for interconnecting the open bottom ends of the U-shaped frame. Headrest 1 is mounted on angle brackets'21 fixed to one plate 22 of a hinge the other plate 23 of which is fixed to a yoke 4 of the U-shaped frame. Yoke 4 may be adjustable in width to suit different widths of back squab. A turn-button 24 locks headrest 1 in the upright position. The headrest may be released to lie in a horizontal position in which it is retained by blade springs 27, Fig. 3 (not shown) to form a table. The blade springs 27 may be released from engagement with plate 22 to allow the headrest to be turned downwards against the rear of the back squab. Headrest 1 may be mounted to be adjustable in height and also forwardly and rearwardly relative to the U-shaped frame. A lumbar pad may be detachably and adjustably mounted on the uprights 3.
Patent GB-1108049-A (GB)
Title: An electric servo drive means for control valves
Inventor: FELDHOFF HEINRICH
IPC: H02P7/29
Filed: 1965-07-06
Abstract: 1,108,049. Control of D.C. motors. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 July, 1965 [7 July, 1964], No. 28513/65. Heading H2J. A valve positioning motor M of low inertia is energized from an A.C. source with trains of D.C. pulses through one or the other of two thyristors St1, St2, according to direction of rotation, triggering being effected by circuits I, II in response to signals from an electronic regulator R, the triggering circuits being switched to their non-triggering state when the charge on a capacitor C1 or C2 balances the signal from R; the capacitor is charged by the rectified A.C. component of the pulsed D.C. motor current. Charge rate is adjustable by a rheostat R1 or R2 and discharge is through a second rheostat between 6, 7, the triggering circuit switching back to the triggering condition when the charge drops below the regulator signal. The motor torque can be different in each direction, by energizing the respective thyristors from separate transformer windings, and a battery may be automatically connected to the motor to drive the valve to one end of its travel in the event of failure of the normal supply, (Fig. 3, not shown). Provision is made for manual operation of the valve.
Patent GB-1293375-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: WHITAKER ROBERT
IPC: G01G21/04
Filed: 1969-06-05
Abstract: 1293375 Valves SEALAND ENG (KEIGHLEY) Ltd 4 June 1970 [5 June 1969] 28531/69 Heading F2V  A valve comprises a spring loaded spindle 4 extending through a valve seat 3, and carrying on one side of the'seat a closure member 5 and on the side remote from the closure member an operating mechanism including a trip linkage to allow the valve to close freely under the spring. The mechanism consists of an adjustable mounting member 8 in which the spindle is slidably mounted. The spindle is screwthreadedly engaged in a yoke 10 positioned outwardly of the member 8. The yoke is connected to the member 8 through a linkage 12, 13 adapted in one position shown to hold the valve open, and when pivoted away from this position to release the yoke and allow the valve to close. As shown, the pairs of' longer and shorter links 13, 12 are pivotably connected by a cross pin 13a to which a trip wire (26), Fig. 1 (not shown), may be attached, or instead, the linkage may be operated by e.g. an hydraulic actuator. The mounting member 8 is adjustable by a thread and lock nut 9 to suit the desired direction of the trip wire. The seat 3 is clamped between angularly adjustable inlet and outlet body parts 2, 25.
Patent GB-359159-A (GB)
Title: Improvements in method and apparatus for decorating confections
IPC: A23G3/28
Filed: 1930-09-24
Abstract: 359,159. Decorating confectionery. NATIONAL EQUIPMENT CO., 3640, Main Street, Springfield, Massachusetts, U.S.A. Sept. 24, 1930, No. 28553. Convention date, Feb. 12. [Class 28 (i).] Confections, whilst still in the plastic state, are engaged by a rotating tool which makes decorative marks in their surfaces. As shown, the invention is applied to decorating freshly-coated confections, and the tools may be of various shapes, and may, during their rotations, move in an orbital path around the confection, the tool slipping relative to the surface of the confection to draw the plastic surface out into the decorative markings. The spindle or other connection between the tool and its driving member is preferably resilient, and as shown in Figs. 10 .. 15, a spindle 2 having a helical end 1 is driven through a coil spring 6. The confections are moved relative to the tool 1 towards the left, and the surface of the confection is engaged by the tool which, with much slipping, evolves around the confection somewhat as a planet-wheel around a sun-wheel. As the confection progresses, the driving connection to the tool 1 becomes more and more bent, and the tool consequently rises on the confection, until the bending stress overcomes the tackiness of the confection, when the tool swings backwards to engage another confection. The confections are arranged in transversely aligned rows on an endless belt conveyer d and are acted upon, as shown in Fig. 1, by a series of tools which may be of the same or of different forms. The tools are preferably arranged in staggered formation to give room for orbital and other movements. The tools are driven by a motor 47 through belt and bevel gearing.. The height of the tools is varied by a hand-wheel 34 and the horizontal position is adjusted by a handwheel 37. The different forms of tools shown are a wire 21 bent into a sector, a ball 17, two trapezoidal members 22 crossed at right-angles, brushes 13, 14, strips of cloth 12, a series of flexibly connected balls 20, discs 18 on arms 19, a single ring 15, and a pair of rings 16 crossed at right-angles. The tools are inserted in sockets 60 in the driving shafts 5, Fig. 3, and are held by grub screws 62. The conveyer d has a series of steps in its surface, sloping surfaces 66 leading down to shoulders 65. The side of the belt is rapped by ratchet-operated gear and the confections move down the slopes 66 and align themselves against the shoulders 65. A handoperated tool, according to the invention, comprises a piece of wire having a crank at one end and a marking tool at the other, the wire being held between the fingers of one hand and revolved by the other hand.
Patent GB-1437531-A (GB)
Title: Timedivision transmission systems
IPC: H01P3/02
Filed: 1973-06-15
Abstract: 1437531 Communication systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 15 June 1973 [15 June 1972] 28647/73 Heading H4R [Also in Division H1] For the avoidance of crosstalk in a timedivision communication system, a cable has inner and outer conductors each comprising at least one set of twisted mutually-insulated wires, each wire having a diameter of order of magnitude #, i.e. the skin-effect penetration depth at the sampling frequency, the inner conductor being disposed generally along the axis of the cable; and a dielectric of strongly non-polar material. The cable is coaxial, having an inner conductor CI comprising at least one set of twisted mutually-insulated wires, e.g. Litz wire, so disposed that each strand successively occupies every radial position in the conductor. The dielectric IA is of polythene or PTFE. The outer conductor CW is a plurality of Litz wires laid helically around the dielectric. For transmitting signals at a sampling frequency of 0À6 MHz the inner conductor CI may comprise 180 strands, and the outer conductor 132 strands, each of 0À04 mm, diameter and a twisting pitch of 12 mm. The cable may be arranged as a speech path in the form of a loop (Fig. 6, not shown) on the "ring-main" principle, having branches for connecting other circuits.